Self-heating sad-iron.



' 0. SPAHR.

SELF HEATING SAD IRON.

- APPLICATION FILED SEPT. I6, i904. 1,237,568. Patented Aug. 21, 1917.

2 SHEETS-SHEET 1- WITNESSES lllll/E/VTOR 0770 SPA/ll? 0. SPAHR.

SELF HEAT ING SAD IRON APPLICATION FILED SEPT. H5, 1914;

1,237,568. Patented Aug. 21, 1917.

2 SHEETS-SHEET 2.

the cover 13 in its closed OTTO SPAHR, OF PHILADELPHIA, PE1\INSYLVANIA.

Application filed. September 16, 1914. Serial No. 861,946.

To all whom it mag concern:

Be it known that I, O'r'ro SPAHR, a citizen of the United States, and resident of Phila-'- delphia, county of Philadelphia," State of Pennsylvania, have invented certain new and useful Improvements in Self-Heating Sad-Irons, of which the following is a specification. l

My invention relates to self-heating sad irons in which a gaseous fuel is used as'the heating medium and has for its: object to provide such irons with a simple and efficient means for producing a spark in the interior thereof whereby the gaseous fuel issuing from the burner'may be quickly ignited when desired. Other objects of my improvement will appear from the description hereinafter and the features of novelty will be pointed. out in the appended claims.

Reference is to'be had tothe accompanying drawings in which Figure 1 is a side elevation of an iron partly in section including my improvementf Fig. 2' is a plan view Fig. 3 is a cross-section on the "line 3-3 of Fig. 1; Fig. 4 isa similar view showing a different form of sparking device. Fig. 5 is a plan view of the body of an iron showing another form, of sparking device; Fig. 6 is across-section thereofon the line 6-6- of Fig. 5 and Fig. 7 is a detail sectional View.

My improvement may be combined with any type of self-heating iron employing a gaseous fuel asv a heating medium, the illustration as an example showing an iron comprising a hollow body 10 providedwith an air inlet 11 and outlets 12for the prod: uctsof combustion. A cover 13 ispivotally connected at 14 with the body lO so as to be movable relatively thereto in'a plane parallel with the bottom of the iron and is provided with a suitable handle 15 whereby the iron may be manipulated as a whole or the cover 13 moved relatively to the body 10. Any suitable means may be used for maintaining position, the draw,- ings showing a resilient catch 16 mounted at the rear end of the body 10 and arranged to engage, and hold the rear'edge of said cover 13in the closed position of the latter. Aburner 17 having jet apertures 18 is located within the body IO-and forms part'of or is connected with a tubef19 located exteriorly of the iron and having a nipple 20 whereby saidburner and tube may be suitably connected with a source of fuel supply.

SELF-HEATING SAD-IRON.

Specification of Letters Patent.

ratentea Aug. 21, 191 7.

' As shownin Figs. 1, 2 and 3, the sparking or ignition means comprises a bracket 21 preferably detachably secured within the body 10 in any suitable manner and provided witha projection 21 adapted to de tachably or removably receive a sleeve or socket 22 in which is located a section 23 of pyrophoric metal or other material capable of producing a spark under certain conditions to be more fully explained hereinafter. The pyrophoric metal or other ma terial 23' is fixed in the socket 22 .in any suitablemanner as by friction and in the example shown projects upwardly from the bracket 21 and is adapted to engage a roughened or cutting surface 24 carried by the cover113 and depending for instance from a support 24 connected with the lower surface of said cover, preferably so as to be removable, as shown in the drawings. The portion of the bracket 21 which carries the socket 22 is preferably somewhat resilient so thatthe pyrophoric metal or other material 23 will be pressed into firm engage ment with the surface 24 during the entire period of usefulness of each section of metal or otherfmaterial 23. e y

In this form of my improvement each time the cover 13 is swung on its pivot 14 relatively to the body 10 the surface 24' will passover the .metal or other material 23 and will cut finely divided particles there from which quickly combine with the oxy gen'in the air and produce a spark sparks. The metal or' other material 23 and the cutting. surface 24 are so located relatively to the burner 17 as to direct the said spark or sparks into contact with the fuel issuing from the jet openings. 18 which fuel is in this manner quickly ignited.

In Fig. 4 a bracket 21 similar to the bracket 21 carries a tube 25 having a roughened or cutting wheel or surface 26 rotatably mounted at its one end, the said tube 25 as illustrated extending parallel with the lower surface of the cover 13. section of pyrophoric metal or otherymaterial 23 is located in said tube 25 and is maintained in contact with the wheel or surface 26 in any suitable manner asv by means of a coil spring 27, an adjustable cap 28 being provided for maintaining said spring in said tube 25 and for adjusting its tension if desired, and for permitting the 25. Inthe' illustrated example the wheel or surface 26 is arranged to frictionally engage the inner surface'ofthecover 13., the.

carrying portion of the bracket 21 in this case being also preferably resilient so as" to maintain said wheel 26 in proper frictional" engagement with the actuating surface of the cover. i

In this form eachtime the cover 13 is 6 moved on its pivot14 the wheel 26 will be rotatedfand'in coeperation with thev pyrox spark orsparksis or are, automaticallypro- 'u 'etedga ten dueed each time the cover.13 is manipulated relatively to the body. 10 I and no other, oper, ation is necesser'y, to properlyv ignite the fuel. By elaying the actuation of the,

cover mere orless afterv thefuel has beenv turned on the, supply of fuel to, the; body of the" iron beforeignition takes place may be. regulatedas. will be clearly'apparent. The. cqver; of. course be successively manip-.

as. necessary to secure ignition of] theffuelalthough'in most cases a single actuation y will be found suflieient 1 for this purpose, It .will .of course be .understood that Ithelocation of the parts may begreversed; if desired, .or in other. Words that those elements which, as shown, are p i i ned ,pnit b dy m y. s m y the cover while the elements carriedby the cover maybemounted on the body.

In', Fig'. 5fI have shown an ignition device operating independently of the cover and comprising a"bracket, 21 having a tub ula'r pertio'iif25i in which a section of {pyrophoric metalor. other material 23 is located,;'th'e l at ter beingarranged,in contact with a rough% ened or; cutting wheel, or surface .26 rotag bl m unted on d racket l PIC: jejction 29} extends radially from said wheel or surface 26?. and is connected with .an ELCtu: ati'ng rod] 30" extending through an aperture 31 in a wall of the body I0,'and terminating in an external handle as clearly shown, in Fig, One vorirmre coil springs 33 may surv round the shafton which the. Wheel. 26 is c d? eql.. nse S Proje i n 9 nd thebracket 2l respectively, said springer springs serving .to rotate said wheel 26? in one, direction will be more fully described hereinafter. It will o f cou'rse be apparent V tha'tany other means adapted to accomplish the same reslult' may-be substituted for the spring or springs33 v if preferred.

In using'this form of my, improvement the actuating; red 30 I is drawn outwardly by means of the handle, .32 to rotate the. wheel 6? ain t he tension}. t e; ptineee ld hfill 'relea e' Ass ss a h mew ase the e ire thereofmayv be. successively. repeated, until released the springs 33 will snap the projection 29and the Wheel or surface 26 back in revcrsedirection so that said wheel or surface will rapidly pass over the metal or and will thus quicklywignite the same, If.

a singlaoperation of; the rod 30 fails toproignition the actuation the desired result has been attained. It. will be. seen thatynq operation, of the cover v13 is necessary t opemte this last; form of my invention although it will be obvious. that other methods. of operating. same maybe ado ptedfif desired. I

sparking means, Comprises a. relatively stationary and. a" 1novahle means so located as to throw the spark or. sparks.-. into contact Inall thefforinsof my improvement the with the. gaseous fuel issuing. from the jet openingsof v the burner so that. a quiek ignie tion. ofythe; fuel is brought about anol,unnec v cessary', WQIlQlS entirely eliminated; My im provement in all of; it's forms be read: y end.- i il, ly m n -a W th, e i ti typesofself-heating gasirons withoutneces-z sita ting. any} change in. the construction thereof and absolutely. does away, with, the necessity for. using matches, tapers; or, the like .when it is .desiredl to .use" the iron The danger of biurning the person using the iron is thus obviated and the operations neces sary to bring the 11 0m condition ready for use are. greatly reduced and simplified.)

In Figs; 1, 2, and .3-:the pyrophoric, metal or other sparking means may behremoved when worn z, out and replenished i by simply removing andreplacing the sleeve orsocket 22 from the projection 21? while the sameresult may be accomplishedinFig, Lby first removing the cap 28 .and;coil spring27 from=theltube 25 to permit the worn sparkingmeans tog be removed and a new one in ertedef en hi e p g d-We replaced. In both of,these formsit is rtherefore unnecessary to. remeve the. entire device from the iITQ L when itis desired to substitute a new sparkingmeans for-a useless one.

Various changes in the specifie forms shown 2 and. described ,may.v be made within the. scope. of the .claims: without departing from the spirit ,'o f,my invention. I

I claim; Y

1. In a self-heating sad ironthe combination ,of, a, hollowfibody, altperforated gaseous fuel burner. therein, a pivoted cover: on said body movable relatively thereto, abrasive nr eans locatedon said cover nearitsfree end and a relatively stationary. .section of I pyroher emeta lqcet iliin pe at ve at o to said-ahra ve eene' t e let e r eing d p 13o to frictionally engage and pass across said section of pyrophoric metal each time the cover is pivotally actuated whereby a spark is produced to ignite the fuel issuing from the burner.

2. In a self-heating sad iron, the combination of a hollow body, a perforated gaseous fuel burner therein, a pivoted cover on said body movable relatively thereto in a horizontal plane, an abrasive member lo.- cated on said cover near its free end and a relatively stationary section of pyrophoric metal located in cooperative relation to said abrasive member, the latter being adapted to frictionally engage and pass across said section of pyrophoric metal each time the cover is pivotally actuatedwhereby a spark is produced to ignite the fuel issuing from the burner.

3. In a self-heating sad iron, the combina- Copies of this patent may be obtained for five cents each, by addressing the v v OTTO SPAHR.

- Witnesses:

J OHN A. KEHLENBEOK, FRED A. KLEIN.

Commissioner of IPatenta,

Washington, D. G. 

